baber/WOPTO huggingface dataset:
Patent GB-1525016-A (GB)
Title: Electric touch or proximity switches
IPC: H03K17/955
Filed: 1975-09-23
Abstract: 1525016 Touch or proximity switches P C SEFTON 17 Sept 1976 [23 Sept 1975] 38950/75 Heading GIN In a touch or proximity switch drive pulse generator 5 is connected via capacitively coupled touch electrodes 2, 3 and directly to respective inputs of logic detector circuit 4 which is operable to detect the difference in amplitude between the signals supplied to the inputs and to generate a control signal. This latter signal is passed to a trigger circuit 6 which controls a trial 7 to control the load current 8. The detector circuit 4 may include a set reset flip-flop comprising a pair of cross coupled NAND gates, Fig. 3 (not shown), or a non- inverting digital buffer whose power supply terminal is connected via a NAND gate to the output of the pulse generator, Fig. 4 (not shown). A plurality of electrodes 3 may be driven from a single electrode 2, the logic detector being arranged to give a programmable multiple-switching operation Fig. 7 (not shown). The electrodes may be printed circuit conductors on one surface of insulating material, electrode 2 surrounding electrode 3 and a screen electrode. The electrodes may be covered with a further board carrying a screening electrode.
Patent GB-840304-A (GB)
Title: Improvements in compressed composition building boards, slabs and the like
Inventor: BURKE HOWARD
IPC: B28B19/00
Filed: 1958-12-03
Abstract: 840,304. Building boards. WELSH MOULDINGS Ltd. Dec. 3, 1958, No. 38973/58. Class 87(1)- A building board comprises a core of exfoliated vermiculite and sodium silicate or urea formaldehyde faced with sheets of fibreglass.
Patent GB-1430771-A (GB)
Title: Process and apparatus for forming a composite pipe of synthetic resin containing separating plates therein
IPC: B29C48/34
Filed: 1973-08-17
Abstract: 1430771 Extruding thermoplastics pipe MARUHACHI KASEI KOGYO KK 17 Aug 1973 [31 Aug 1972] 39103/73 Heading B5A An extruded pipe of thermoplastic synthetic resin has a shape simulating bamboo, and a buoyancy in water, obtained by thermoplastic resin plates located at spaced intervals within the tube and dividing its interior into airtight chambers. The plates are inserted during extrusion of a first tubular wall of the tube which is perforated to prevent collapse of the wall during cooling, the perforations being sealed by the extrusion, around the first tube wall, of a further tube wall 82 of the same or different resin, as shown in Fig. 2. The bamboo shape facilitates tying by string, and is enhanced by drawing of the tubular walls away from the extrusion dies and by a first tubular wall of greater thickness, e.g. 2 mm., than the further wall, e.g. of 1 mm. The first tubular wall 26 is extruded from the Fig. 3 apparatus, in which the outer die 27 extends downstream of the inner mandrel 28 over a region in which the plates x are inserted into the extruding wall 26, by displacement through a mandrel passage 29 by means of a reciprocated suction disc 36. The plates x are delivered into the path of the disc 36, by means of a reciprocated rod 33, and from a container 31 at which a heater 32 heats the edges of the plates, which are further heated in the passage 29. The fixing of the plates x within the tube may be enhanced by their size being larger than the inner diameter of the pipe, or by pinching of the pipe by roller pairs 41, 42. The perforating of the pipe wall is effected immediately downstream of the die outlet, by a needle reciprocated by an electromagnet, optionally provided with a spring. The extrusion passage 23, 24, 25 is of progressively decreasing thickness, and material is delivered thereto from an extruder 1, by a pair of passages 22 each extending in opposite directions and being of progressively increasing width. The first tubular wall 26 is cooled in being drawn through the air by pull-off rolls, and delivered to the Fig. 2 extruder die 8 for extrusion of the further wall 82 which is drawn on to the first wall by a vacuum applied at 83, the first wall being sealed at its entry to the die 8 by a seal, or spaced seals 84. The pipe is drawn from the Fig. 2 extruder, and through cooling means, by further rolls.
Patent GB-1467250-A (GB)
Title: Vehicle speed control arrangmenet
IPC: B61L3/00
Filed: 1973-08-18
Abstract: 1467250 Train control system WESTINGHOUSE BRAKE & SIGNAL CO Ltd 25 July 1974 [18 Aug 1973] 39147/73 Heading B7N [Also in Division G3] A speed control arrangement for a vehicle, particularly a railway train, includes means for measuring speed and computing from a desired speed/distance profile a desired distance value, means for determining distance travelled past a predetermined position, a comparator for comparing the desired and actual distance values and control means responsive to the comparison to control the speed so that the actual speed distance profile is maintained within predetermined limits from the desired profile. The system described is used to brake a train accurately in a station and respond to a marker provided a predetermined distance from the required stopping point. The movement of the train is signalled by pulses DR which are counted in CDR over a time interval t, to provide a binary coded speed signal SM which is input to a read only memory SM/DS containing the stopping speed/distance profile to read out the desired distance to stop. The detected marker signal M DET  provides a signal Dg representing the distance from the marker to the stopping point and this value is set in counter Dg INST which is counted down by the pulse DR giving the instantaneous actual distance to stop. Tolerance limits are provided by selecting the value Dg as the lowest limit and adding values x% and x%+y% to give the profile (or centre) value and the upper limit respectively. The actual distance to stop and the desired distance to stop are compared in comparator COMP CEN and the error signal used in logic circuit LEV LOG to provide a brake application. A data switch SWSL operates to switch one or other limit value of the actual distance to stop to the limit comparator COMP LIM under the control of the LEV LOG circuit which includes a timing element to ensure that spurious brake application charges are not demanded and also to account for the time lag in applying the brakes. In the system described seven repeatable levels of brake application are available and the logic circuit also provides an easing when the stopping point is reached. Provision is made to recalibrate the signals DR and Dg by taking the time and distance between two spot markers and using any measuring error signal to change a binary rate multiplier DRSC, Fig. 2 (not shown), or a multiplication circuit X(N-1), Fig. 3 (not shown), respectively to provide exact values for the actual distance run and the distance from the marker.
Patent GB-339807-A (GB)
IPC: G01R11/56
Filed: 1929-12-21
Abstract: 339,807. Allgemeine Elektricitõts- Ges. Dec. 22, 1928, [Convention date]. Special quantities, registering. - The current coil x of a supply meter is connected in series with the current coil a of a wattmeter relay of the Ferraris type which causes the connection and disconnection of a tariff-changing circuit. The current winding a of the relay is connected in series with one set of consuming devices, for instance lamps b for which the higher tariff is charged. On closure of the lighting circuit, the armature disc e of the relay is driven in the direction of the arrow and drives, through gearing f, g, h, h<1>, a shaft i carrying forked extensions i<1>, i<2>, which engage a falling contact arm h<2>, which closes the circuit of a relay m through springs s, t. This opens a mercury switch o whinh opens the circuit of the low-rate consuming devices, such as a hot-water tank heater n, and at the same time opens the circuit of the tariff-changing electromagnet p, so that the higher-rate counting-gear is brought into operation. On opening the lighting circuit the armature disc e is driven backwards by the pressure winding c, whereby the arm h<2> is lifted and opens the circuit of the relay m. This closes the circuit of the heater n and that of the electromagnet p, so that the low-rate counting-gear is brought into operation. The relay m may be omitted and the mercury switch o directly operated. The motion of the armature disc may be limited by'stops. The meter and relay may be mounted on a common baseplate, or may form separate apparatus. The falling contact arm h<2> may carry indications showing which group of consuming apparatus is in circuit.
Patent GB-392072-A (GB)
Abstract: 392,072. Magnetos. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Nickle, C. A.; 1771, Randolph Road, Schenectady, New York, U.S.A.) Oct. 19, 1932, No. 29253. Convention date, Oct. 19, 1931. [Class 35.] A permanent magnet of circular cross section, magnetized transverse to its axis, and a current-carrying coil are arranged so as to permit relative motion between them. In the ammeter shown in Fig. 1, a movable coil 11 surrounds a permanently magnetized core 12, both being surrounded by a soft iron magnetic shield 13 which may be closed at its ends by soft-iron plates 23. The cylindrical core 12 is of cobalt steel and is magnetized in a direction transverse to the axis of rotation of the coil 11, so that the flux crosses the air-gap and returns through the shield 13 as shown in Fig. 3. The coil 11 may be mounted on a shaft 14 passing through a central hole in the core 12, or this core may be solid and the coil provided with stub shafts. The core 12 is spaced from the shield 13 by means of a non-magnetic block 18. The shaft 14 may carry a pointer 21 moving over a scale 22, or an arm adapted to close a contact. The permanent magnet 12 may alternatively be arranged to move relatively to a fixed coil. The parts 12, 13 may be eccentrically arranged, to give a varying airgap. The core 12 may be magnetized by placing the assembled instrument with the magnetic shield 13 between the poles of an electromagnet having, for example, 40,000 ampere turns, which saturates the shield 13 and permits flux to pass through and magnetize the core 12. The invention is also applicable to recording instruments and instruments having compound or crossed coils. The moving coil may be arranged for continuous rotation, as in magnetos.
Patent GB-885065-A (GB)
Title: Improvements in swaging or closing devices for rivet-like elements of plastic material
IPC: B29C65/60
Filed: 1958-12-05
Abstract: 885,065. Rivet sets. GRANFIELD, H. S. Nov. 20, 1959 [Dec. 5, 1958], No. 39267/58. Class 83 (4). A tool for expanding a thermoplastic blind-bore hollow stub or rivet comprises a body 1, and tapered portion 3 and an annular recess 5 surrounding said tapered portion. A central hole 7 leads to a transverse hole 8 and allows air to escape from the blind bore, and the recess 5 is bounded by a flat end face 6. The tool is adapted to be attached to a soldering-iron or similar heating device.
Patent GB-1105097-A (GB)
Title: Rotary mixing apparatus for pulverulent and granular materials
IPC: B01F15/00
Filed: 1965-09-15
Abstract: 1,105,097. Mixing apparatus. H. BEICHLE [trading as HERMAN BEICHLE], 15 Sept., 1965 [17 Sept., 1964], No. 39473/65. Heading B1C. A cylindrical mixing drum 32 arranged to be rotated about a transverse axis is carried in a rotatable frame having four telescopic columns 21, 31; the cylinder is engaged with its cover 34 by drums and cables 43, 33 and secured by latches 45. The cover is resiliently mounted in the frame by means of springs 36 and has a deep flange 35 so that it can yield under impact of the load without material escaping from the drum. The shaft 11, 12 may be driven by gearing (not depicted) giving a non-uniform rotary motion.
Patent GB-1245337-A (GB)
Title: Electron beam welding apparatus
Inventor: SCIAKY DAVID
IPC: B23K15/06
Filed: 1969-08-07
Abstract: 1,245,337. Electron beam welding apparatus. D. SCIAKY. 7 Aug., 1969 [7 Oct., 1968], No. 39559/69. Heading H1D. [Also in Division B3] An electron beam welding apparatus has a vacuum chamber defined by a floor plate 3 and a movable cover 1, and a work-table within said chamber, the arrangement being such that the cover may be moved to obtain unobstructed overhead access to the work-table for the purpose of handling a workpiece to be disposed on the work-table. The cover is made of a number of sections 4, each section having three ribs 5 and end flanges 18, and end bells 19. The floor plate is also made from a number of sections. Adjacent sections of the cover and floor plate are sealed therebetween by seals 26 and 36 respectively. The ends of the seals are cemented to bridging members 29 and 37 which are arranged so that smooth sealing surfaces 30 and 39 are provided around the assembled cover and floor edges. Seal supports 31 and 40 retain continuous seals 32 and 35 respectively as well as an upper seal 34 and an inflatable seal 33. The latter is inflated to seal the cover to the floor when the chamber is to be evacuated. The cover is pivoted about pivots 6 by structures 7 which are fitted with counter weights 8. A diffusion pump 10 and a mechanical pump 11 are provided for evacuating the chamber. A pneumatic operator 15 can be operated to hold the cover closed until pumping has been activated to evacuate the chamber whence it is released. The cover 1 has viewing ports 17. The electron gun (24), Fig. 3 (not shown), is mounted for transverse movement on gantry (20) by a ball and screw mechanism. A similar mechanism operates the gantry to move it lengthwise through the chamber.
Patent GB-1532972-A (GB)
Title: Protein-containing foodstuff derived from osmotically rupturable cellular microorganisms and a process for the manufacture thereof
IPC: C12N1/00
Filed: 1975-09-29
Abstract: 1532972 Osmotically-rupturable cellular micro-organisms INSTITUT PASTEUR 29 Sept 1975 [30 Sept 1974] 39721/75 Heading C3H A process for manufacturing a foodstuff for animals includes the steps of preparing a protein-rich material by culturing osmoticallyrupturable non-pathogenic cellular microorganisms in a culture medium, harvesting the cultured micro-organisms by separating them from said medium, optionally subjecting the harvested micro-organisms to osmotic-rupture in a medium of lower osmotic pressure than said culture medium, and thereafter reducing the water-content of the unruptured or osmoticallyruptured micro-organisms to form the desired protein-rich material. The protein-rich material may derive wholly or predominantly from microorganisms capable of growing in an aqueous medium which contains more than 15 g./litre of sodium chloride and the cell walls of which are ruptured spontaneously when brought into contact with an aqueous medium containing less than 15 g./litre of sodium chloride. The protein rich material may consist wholly or predominantly of bacteria of the Photobacterium species.
Patent GB-1280891-A (GB)
Title: Getter pumps
Inventor: PORTA PAOLO DELLA
IPC: H01J7/18
Filed: 1969-08-08
Abstract: 1280891 Gettering apparatus S A E S GETTERS SpA 8 Aug 1969 [10 Aug 1968] 39735/69 Heading H1D A getter pump includes a pleated metal strip carrier 30 for a non-evaporating getter material, the carrier being cylindrical and disposed around heater 16 with the pleats parallel to the longitudinal pump axis. The heater is preferably electrical resistance type e.g. W or Ta wire, and the getter material may be a powder (270 mesh/inch) embedded in the metal carrier preferably of softer material by rolling or pressing such as to ensure no material reduction in the active surface. Bonding may be as in Specification 1,139,195. Strip 30 may be held by sinusoidally curved strip retainer 23. Getter material (34), Fig. 4 (not shown), terminates short of the strip's parallel edges (35), (36), slits (37) extending into the getter free margin, the pleated areas (38), Fig. 5 (not shown), being joined at their extremities by bridging attachments (39) of getter free regions, allowing pleating without dislodgement of material. Strip 31 is preferably a metal and may be iron or stainless steel, while the getter material may be Zr, Ti, Ta, Nb, alloys of two or more of these e.g. Zr with 1 to 40% Al and preferably a 84% Zr-16% Al alloy and is preferably activated at 600 to 900 C. e.g. 700 to 800 C. Subsequently, operation may be at room temperature or the absorption rate may be increased by heating to 300 to 450 C. Installation in klystron and image intensifier tubes is instanced.
Patent GB-879581-A (GB)
Title: Improvements in or relating to, pull-operated electric switches such as ceiling switches
IPC: H01H17/00
Filed: 1958-12-10
Abstract: 879,581. Cam-operated switches. CRABTREE & CO. Ltd., J. A., and HEATH, R. Sept. 8, 1959 [Dec. 10, 1958], No. 39782/58. Class 38 (5). A ceiling switch comprises a base 1 carrying terminals 17, 21 and having a cover 14 with aperture 13 for guiding a flexible pull cord 12. A metal strip 18 is anchored at one end to terminal 17 and at its other end carries a contact 19 which is urged by a spring 22 into engagement with a contact 20 carried on terminal 21. A pin 3 journalled in lugs depending from base 1 (Fig. 3, not shown) carries a rotor 4a having circumferential cams 15 such that the depressions therebetween are alternately shallow and deep, and engagement of the shaped end 16a of a blade 16 adjacent to strip 18 in these depressions causes contacts 19, 20 to be alternately opened or closed respectively. The rotor 4a also has ratchet teeth 6 engageable by a dog 7 on a pawl lever 5 which is pivoted on the rotor hub 4b by an elongated opening 5b. A pull on cord 12 thus moves rotor 4b to cause follower 16a to engage the next depression and on release of cord 12 a spring 10 returns the pawl 5, but the rotor does not move since the elongated opening 5b allows dog 7 to ride over the ratchet teeth 6. Two rotors, one on either side of pawl 5, are provided, each having associated contacts 19, 20.
Patent GB-1109723-A (GB)
Title: Improvements in and relating to terry looms
IPC: D03D27/08
Filed: 1965-09-20
Abstract: 1,109,723. Weaving terry fabrics. CANNON MILLS CO. 20 Sept., 1965 [22 Sept., 1964], No. 40075/65. Headings DIE and D1K. The reed of a terry loom is operated to beat up the fast and loose picks by a shaft 90, Fig. 6, which is rocked by a cam 111 acting through a follower lever 103 and a hooked link 100 normally engaging a pin 102 on an arm 96 on the shaft. In order to weave plain headings between successive dowels, the hook can be disengaged from the arm 96 by energising a solenoid 120 under the control of a pattern mechanism. Fig. 10. Three reading needles f pass through holes or longitudinal slots in a tape p to make electrical contact with a drum 155 and thereby energise corresponding solenoids, namely: the solenoid 120 controlling the formation of pile; a solenoid controlling the ratchet of the terry warp let-off motion: and a solenoid controlling the ratchet of the fabric take-up motion. The pattern tape is made of polyethylene and is guided by rollers 156 which are adjustable along slots to cater for different lengths of pattern; the rollers are supported at one end only so that the pattern tape can ba threaded on to them endwise; the rollers need not be rotatable. Both runs of the tape pass together under a shaft 180 which carries a singletoothed member 177 to advance the pattern drum 155 by one tooth of a wheel 176 every third pick (for three-pick terry). The fabric take-up is interrupted when changing from terry to plain weaving to prevent thin places in the fabric; this may also be done when changing back to terry. Marks may be made to show where to out the fabric into separate towels by operating the reed to give partial beat-up halfway along the plain weave portionis. The pattern mechanism may control additional solenoids for perfotming other functions, such as operating a change box. yarn may be further subjected to a relaxa-
Patent GB-1507137-A (GB)
Title: Magnetic bubble translation system
IPC: G11C11/14
Filed: 1976-09-28
Abstract: 1507137 Magnetic bubble lattices INTERNATIONAL BUSINESS MACHINES CORP 28 Sept 1976 [15 Dec 1975] 40104/76 Heading H3B A confined magnetic bubble lattice is driven along an axis by sequential currents (of alternating polarity) applied to respective arrays 10, 14 of parallel conductors 12, 16 connected in parallel and at Œ60 degrees to the axis. The arrays are formed by a perforated plate without mutual insulation.
Patent GB-847568-A (GB)
Title: Improvements in or relating to devices for connecting electrical cables together
IPC: H02G15/00
Filed: 1958-12-15
Abstract: 847,568. Twopart couplings: cable couplings. FELDMAN, M. Dec. 15, 1958 [Dec. 23, 1957], No. 40294/58. Class 38(1) A cable connector comprises a pair of interfitting, identical members, A, B, each comprising a pair of prongs 32, 33 with diametric faces 16, 17, and 18, 19 respectively, said prongs interfitting as shown in Fig. 3 to form a continuous cylindrical body. Screws are engaged in transverse apertures 24, 25 in each pair of prongs to hold the members together. The outer end of each member is recessed at 11 to receive a conical element 40 between which and a sleeve 36 screwing into recess 11, is clamped the splayed out end of a cable conductor. Resilient insulating sleeves with interchanging spherical end surfaces may be provided round the members.
Patent GB-1427314-A (GB)
Title: Device for varying the rate of supply of flexible elongate  material
IPC: B65H81/08
Filed: 1971-11-19
Abstract: 1427314 Expanding chain-wheel gearing SLUMBERLAND (DEVELOPMENTS) Ltd 19 Feb 1973 [19 Nov 1971] 40697/75 Divided out of 1427312 Headings F2D and F2Q The rate at which wire 12 is forwarded is varied by opening or closing split chain wheel 58 which is part of the drive train of wheels 19, 32. Each half of chain wheel 58 is screwed to a semicircular plate 60 pivotable about rod 61. A spring (not shown) acting upon pins 68 urges plates 60 together to give the closed position. When cam 72 is pushed into slot 74 it separates the halves of chain wheel 58 to give its open position, in which its periphery is increased by a distance equal to one tooth. If the wire is being forwarded too fast the loop of wire to the left of Fig. 1 increases until the wire touches limit switch 29. A pneumatic cylinder is activated to forward cam 72 and open the split chain wheel 58. The rate at which wheel 58 revolves is reduced, thereby reducing the rate at which wire 12 is forwarded. The loop of wire decreases until limit switch 28 is touched, thereby withdrawing cam 72, closing the split chain wheel and increasing the rate at which wire 12 is forwarded. The difference between the two speeds may be altered by replacing the chain wheel. Thus for a wheel with 38 teeth the difference is 1 in 38, i.e. 2À63% whereas for a 40 teeth wheel the difference is 2À5%. The wire may be wrapped with paper strips 16 and used to make nets, see Specifications 1,427,312 and 1,427,313.
Patent GB-1284967-A (GB)
Title: Foot supporting and corrective device
Inventor: COPLANS CARL WADDINGTON
IPC: A43B7/22
Filed: 1970-08-25
Abstract: 1284967 Boots &c SPRING-TRED Inc 25 Aug 1970 40762/70 Heading A3B A foot supporting and correcting device consists of a plate 15 having forward 16 and rear 17 portions which are inclined in opposite directions with respect to the longitudinal axis of the foot and an intermediate section 18 which is twisted about its length and which yieldably supports the front and rear sections 16, 17 in their inclined positions, the device producing a yieldable torsional force on the foot during a walking step. The sections 16, 17 are inclined such that the edge 17a of the rear section 17 lifts the inner side of the heel and the edge 16a of the front section 16 lifts the outer side of the forepart of the foot. The twisted intermediate section 18 is of stiff material and acts as a flat spring. The device 15 may be covered with a sheet of flexible material and used as a removable insert for a shoe or may be built into the shoe between the inner and outer soles. In a modification (not shown) the front and rear sections are formed from separate pieces and are joined by an intermediate spring strip, e.g. by rivets.